I’ve owned all the packs you mention. The K3 is great, and I 100% regret selling mine. Best thing you can do is find one a try it on, because it all comes down to your fit and torso height. I’m a short torso long leg guy and the K3 worked great.Ok. Would you happen to know the difference between the this and the k4? How does it compare to the SG krux and x curve frames and packs in the similar size or the new MR metcalf with newly designed ultralight guide lite frame. These are the three packs I’m considering and a good used one would be nice.
If the K3 is not much different it may be a good option for me as I’m trying to stay as economical as possible in the high dollar pack game.
I know nothing about Exo packs or all the high dollar packs so sorry for the questions.